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ASTM A671

4.2 ASTM A671.JPG

ASTM A671: American Society for Testing and Materials
Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower Temperatures
Application: Power plant; Chemical Fertilizer; Petrochemicals; Offshore Oils; Gas Productions; Refineries and etc.

Chemical Requirements

Pipe

Grade

Composition   %

C   max

Mn


P

  max

S

   max

Si

Others



<=1in  

(25mm)

>1~2in

(25~50mm)

>2~4in

(50-100mm)

>4~8in

(100~200mm)

>8in

(200mm)

<=1/2in

(12.5mm)

>1/2in

(12.5mm)





CB

60

0.24 

0.21 

0.29 

0.31 

0.31 

0.98max

0.035

0.035

0.13–0.45

...

65

0.28 

0.31 

0.33 

0.33 

0.33 

0.98max

0.035

0.035

0.13–0.45

...

70

0.31 

0.33 

0.35 

0.35 

0.35 

1.30max

0.035

0.035

0.13–0.45

...

CC

60

0.21 

0.23 

0.25 

0.27 

0.27 

0.55–0.98

0.79–1.30

0.035

0.035

0.13–0.45

...

65

0.24 

0.26 

0.28 

0.29 

0.29 

0.79–1.30

0.79–1.30

0.035

0.035

0.13–0.45

...

70

0.27 

0.28 

0.30 

0.31 

0.31 

0.79–1.30

0.79–1.30

0.035

0.035

0.13–0.45

...

 

Mechanical Properties

Grade


CB60

CB65

CB70

CC60

CC65

CC70

Tensile strength, min:

ksi

60

65

70

60

65

70

Mpa

415

450

485

415

450

485

Yield strength, min:

ksi

32

35

38

32

35

38

MPa

220

240

260

220

240

260

 

Available Dimension Range

OD(mm/inch)

Wall thickness(SCH)

10

20

30

STD

40

60

XS

80

100

120

140

160

XXS

…100mm

21.3 (1/2'')







26.7 (3/4'')







33.4 (1'')







42.2 (1 1/4'')







48.3 (1 1/2'')







60.3 (2'')







73 (2 1/2'')







88.9 (3'')







101.6 (3 1/2'')









114.3 (4'')






141.3 (5'')








168.3 (6'')







219.1 (8'')


273 (10'')


323.8 (12'')


355.6 (14'')



406.4 (16'')



457 (18'')



508 (20'')



559 (22'')




610 (24'')







660 (26'')











711 (28'')









762 (30'')









813 (32'')








864 (34'')








914 (36'')








965.2 (38'')














1016 (40'')















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